package com.design.pattern.observer.gper;/** * create by yufeng on 2021/7/5 20:15 */public class Question {    private String userName;    private String content;    public String getUserName() {        return userName;    }    public void setUserName(String userName) {        this.userName = userName;    }    public String getContent() {        return content;    }    public void setContent(String content) {        this.content = content;    }}